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1z1-449 PDF DEMO:

QUESTION NO: 1
Which user in the following set of ACL entries has read, write and execute permissions? user::rwx group::r-x other::r-x
default:user::rwx
default:user:bruce:rwx #effective:r-x
default:group::r-x
default:group:sales:rwx #effective:r-x
default:mask::r-x
default:other::r-x
A. sales
B. bruce
C. all users
D. hdfs
E. user
Answer: E
Explanation:
References: https://askubuntu.com/questions/257896/what-is-meant-by-mask-and-effective-in-the- output-from-getfacl

QUESTION NO: 2
How should you encrypt the Hadoop data that sits on disk?
A. Enable Transparent Data Encryption by using the Mammoth utility.
B. Enable HDFS Transparent Encryption by using bdacli on a Kerberos-secured cluster.
C. Enable HDFS Transparent Encryption on a non-Kerberos secured cluster.
D. Enable Audit Vault and Database Firewall for Hadoop by using the Mammoth utility.
Answer: B
Explanation:
HDFS Transparent Encryption protects Hadoop data that's at rest on disk.
When the encryption is enabled for a cluster, data write and read operations on encrypted zones
(HDFS directories) on the disk are automatically encrypted and decrypted.
This process is "transparent" because it's invisible to the application working with the data.
The cluster where you want to use HDFS Transparent Encryption must have Kerberos enabled.

QUESTION NO: 3
Your customer keeps getting an error when writing a key/value pair to a NoSQL replica.
What is causing the error?
A. The master may be in read-only mode and as result, writes to replicas are not being allowed.
B. The replica may be out of sync with the master and is not able to maintain consistency.
C. The writes must be done to the master.
D. The replica is in read-only mode.
E. The data file for the replica is corrupt.
Answer: C
Explanation:
Replication Nodes are organized into shards.
A shard contains a single Replication Node which is responsible for performing database writes, and which copies those writes to the other Replication Nodes in the shard. This is called the master node.
All other Replication
Nodes in the shard are used to service read-only operations.
Note: Oracle NoSQL Database provides multi-terabyte distributed key/value pair storage that offers scalable throughput and performance. That is, it services network requests to store and retrieve data which is organized into key-value pairs.
References:
https://docs.oracle.com/cd/E26161_02/html/GettingStartedGuide/introduction.html

QUESTION NO: 4
What does the following line do in Apache Pig?
products = LOAD '/user/oracle/products' AS (prod_id, item);
A. The products table is loaded by using data pump with prod_id and item.
B. The LOAD table is populated with prod_id and item.
C. The contents of /user/oracle/products are loaded as tuples and aliased to products.
D. The contents of /user/oracle/products are dumped to the screen.
Answer: C
Explanation:
The LOAD function loads data from the file system.
Syntax: LOAD 'data' [USING function] [AS schema];
Terms: 'data'
The name of the file or directory, in single quote
References: https://pig.apache.org/docs/r0.11.1/basic.html#load

QUESTION NO: 5
What does the flume sink do in a flume configuration?
A. sinks the log file that is transmitted into Hadoop
B. hosts the components through which events flow from an external source to the next destination
C. forwards events to the source
D. consumes events delivered to it by an external source such as a web server
E. removes events from the channel and puts them into an external repository
Answer: D
Explanation:
A Flume source consumes events delivered to it by an external source like a web server.
The external source sends events to Flume in a format that is recognized by the target
Flume source. When a Flume source receives an event, it stores it into one or more channels.
The channel is a passive store that keeps the event until it's consumed by a
Flume sink.
References: https://flume.apache.org/FlumeUserGuide.html

Oracle Symantec 250-587「Oracle Big Data 2017 Implementation Essentials」認証試験に合格することが簡単ではなくて、Oracle Symantec 250-587証明書は君にとってはIT業界に入るの一つの手づるになるかもしれません。 OracleのSalesforce Manufacturing-Cloud-Professional試験に受かるのは実際にそんなに難しいことではないです。 SAP C_DBADM_2404 - 今の社会の中で、ネット上で訓練は普及して、弊社は試験問題集を提供する多くのネットの一つでございます。 OracleのSalesforce Tableau-CRM-Einstein-Discovery-Consultant-JPN試験に受かるのはIT職員の皆さんの目標です。 SMRP CMRP - 試験問題と解答に関する質問があるなら、当社は直後に解決方法を差し上げます。

Updated: May 28, 2022